After fans expressed their worry, a note was later posted that said the Irish musician was "safe, and she is not suicidal" and is "receiving the best of care."

On Thursday, Fiona Apple shared a video where she called the Nothing Compares 2 U singer her "hero," and offered to "be of some use to" her.

The 39-year-old told O'Connor:

"I want you to know that you are my hero as well. I just saw the video of you and I don't want you to feel like that. I don't want you to feel like that. You've given so much and I wish I could be there. I wish I could be of some use to you. I wish I could — I'm your friend. That's all I want to say, and you're my hero."

We were already in for this Haim video because it's such a great, emotional song.

But for Right Now the sister act scored Boogie Nights director Paul Thomas Anderson to give them an amazing, roaming camera one-take vid that's as mesmerizing a crescendo as the track!

Anderson is no stranger to the music video world — he collaborated with ex Fiona Apple on several, including the gorgeous musical homage Paper Bag – but keeping a wandering eye going around the studio while Este, Danielle, and Alana nail every note is a really singular feat. So to speak.

Of course, this is far from the first one-take music video. Check out some of our faves from Taylor Swift, Miley Cyrus, OK Go, and more (below)!

CLICK HERE to view "15 Music Videos You Won't BELIEVE Were Filmed In One Take!"

CLICK HERE to view "15 Music Videos You Won't BELIEVE Were Filmed In One Take!"

CLICK HERE to view "15 Music Videos You Won't BELIEVE Were Filmed In One Take!"

CLICK HERE to view "15 Music Videos You Won't BELIEVE Were Filmed In One Take!"

CLICK HERE to view "15 Music Videos You Won't BELIEVE Were Filmed In One Take!"

Even though Fiona Apple has been pretty quiet on the music front the past few years, the songstress is using her voice for a GREAT cause — speaking out against Donald Trump!

On Tuesday, the Criminal singer released her new song, titled Tiny Hands, which is meant to be a chant for protesters who plan to speak out during or close to Donald's inauguration on Friday in Washington D.C.